{"id":84787,"date":"2025-10-28T11:38:44","date_gmt":"2025-10-28T11:38:44","guid":{"rendered":""},"modified":"2025-10-29T08:17:18","modified_gmt":"2025-10-29T14:17:18","slug":"cve-2025-32312-local-escalation-of-privilege-via-lazy-bundle-hardening-bypass","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-32312-local-escalation-of-privilege-via-lazy-bundle-hardening-bypass\/","title":{"rendered":"CVE-2025-32312: Local Escalation of Privilege via Lazy Bundle Hardening Bypass<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The CVE-2025-32312 is a critical vulnerability that impacts systems utilizing createIntentsList of PackageParser.java. This vulnerability allows an attacker to bypass lazy bundle hardening and pass modified data to the subsequent process. It presents a risk to system integrity and confidentiality, potentially allowing unauthorized elevation of privilege<\/a> and data leakage without user interaction.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-32312
\nSeverity: High (7.8 CVSS Score)
\nAttack Vector: Local
\nPrivileges Required: None
\nUser Interaction: Not Required
\nImpact: Local escalation of privilege, potential system<\/a> compromise, and data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Java Runtime Environment | All versions prior to patch
\nJava Development Kit | All versions prior to patch<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability resides in the createIntentsList function<\/a> of PackageParser.java, which is used for parsing application packages. The flaw lies in the unsafe deserialization process, allowing an attacker to bypass lazy bundle hardening. This means that a malicious actor can modify data and pass it to the next process, potentially leading to unauthorized escalation of privilege<\/a> and data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

The following conceptual code outlines how this vulnerability<\/a> might be exploited:<\/p>\n

import java.util.*;\nimport java.io.*;\npublic class ExploitCVE202532312 {\npublic static void main(String[] args) {\ntry {\nObject maliciousBundle = new MaliciousBundle();\nByteArrayOutputStream byteOutput = new ByteArrayOutputStream();\nObjectOutputStream objectOutput = new ObjectOutputStream(byteOutput);\nobjectOutput.writeObject(maliciousBundle);\nByteArrayInputStream byteInput = new ByteArrayInputStream(byteOutput.toByteArray());\nObjectInputStream objectInput = new ObjectInputStream(byteInput);\n\/\/ Trigger the vulnerable deserialization process\nObject deserializedBundle = objectInput.readObject();\n\/\/ Bypass the lazy bundle hardening, passing modified data to the next process\n\/\/ The details of the malicious bundle and the subsequent process are hypothetical and for illustrative purposes only\nProcessBuilder processBuilder = new ProcessBuilder(\"nextProcess\", deserializedBundle.toString());\nProcess process = processBuilder.start();\n} catch (Exception e) {\ne.printStackTrace();\n}\n}\n}<\/code><\/pre>\n
The above code is purely hypothetical and only intended to illustrate the concept of the exploit. The actual exploit would be specific to the system configuration and the attacker\u2019s objectives.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The CVE-2025-32312 is a critical vulnerability that impacts systems utilizing createIntentsList of PackageParser.java. This vulnerability allows an attacker to bypass lazy bundle hardening and pass modified data to the subsequent process. It presents a risk to system integrity and confidentiality, potentially allowing unauthorized elevation of privilege and data leakage without user interaction. Vulnerability Summary […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-84787","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-privilege-escalation"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t